import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
//1.引入element-plus组件库与其样式
import ElementPlus, { ElMessage }  from 'element-plus'

import 'element-plus/dist/index.css'
//2.引入element-plus图标库,并起别名为ElementPlusIconsVue
import * as ElementPlusIconsVue from '@element-plus/icons-vue'
//6.1修改elementPlus默认中文
import zhCn from 'element-plus/dist/locale/zh-cn.mjs'
import axios from "axios";

const BASE_URL='http://localhost:8080';
window.BASE_URL=BASE_URL;
const app = createApp(App)/* 创建vue实例,并起名为app */
app.config.globalProperties.BASE_URL=BASE_URL;
//3.将所有导入的图标组件变为键值对数组,并依次遍历取出每一个图标组件[key, component]
for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
    // 4.将当前遍历到的图标组件注册为当前vue实例的全局组件
    app.component(key, component)
}
//5.为前vue实例应用element-plus组件库
//6.2 app.use(ElementPlus,{ locale: zhCn })将El本地化为中文
app.use(ElementPlus,{ locale: zhCn }).use(store).use(router).mount('#app')

//7.解决ResizeObserver Error
const debounce = (fn, delay) => {
    let timer = null;
    return function () {
        let context = this;
        let args = arguments;
        clearTimeout(timer);
        timer = setTimeout(function () {
            fn.apply(context, args);
        }, delay);
    }
}
const _ResizeObserver = window.ResizeObserver;
window.ResizeObserver = class ResizeObserver extends _ResizeObserver {
    constructor(callback) {
        callback = debounce(callback, 16);
        super(callback);
    }
}
router.beforeEach((to,from,next)=>{
    let user=localStorage.user;
    if (to.path!=='/login'&&!user)
    {
        next({path:'/login'},ElMessage.error('请先登录'));
    }
    else
    {
        next();
    }
})


window.getUser = ()=>{
    return localStorage.user ? JSON.parse(localStorage.user) : null;
}

window.loadDictionOption=(object,dictCode)=>{
    axios.get(BASE_URL+"/v1/dicOption/select/"+dictCode)
        .then((response)=>{
            if (response.data.code==2000){
                object.value=response.data.data;
            }
            else {
                ElMessage.error(response.data.message);
            }
        })

}